Yes certainly, synesthesia has many different forms. From what I understand -- and I could be completely off, but this is just information I've tried to collect since I finally had a word for the condition -- the word-color synesthesia thing is pretty common. Sound-color exists, but it's pretty uncommon. Among many, many different combinations. One of my friends has confided in me that she feels different temperatures with different words. I hadn't heard of that before, but I don't doubt it. There were some scientists who did MRI work on synesthetes and found that it basically amounts to functional crossovers in the brain between the affected areas.